Written by herself and Ne-Yo and also produced by himself and Chuck Harmony, the song serves as the lead single from Rihanna’s fourth studio album Rated R.

The video features Rihanna in a series of distressing situation, including what appears to be a gas chamber, a game of Russian Roulette, a vehicular assault, an underwater shooting and a torture chamber.
The video premiered on November 13, 2009 on ABC’s 20/20.

The song debuted on the U.S. Billboard Hot 100 at #100 on October 29, 2009. It climbed to #75 the following week, and in its third week on the chart the song made a 66-position jump to #9, becoming Rihanna’s twelfth top ten hit.

“Party in the U.S.A.” is a pop song performed by Miley Cyrus. The song was written by Lukasz Gottwald, Claude Kelly and Jessica Cornish, and produced by Gottwald.

“Party in the U.S.A.” became Cyrus’ best charting effort to date on the Billboard Hot 100 and her fifth U.S. airplay hit.

Released as the lead single from Cyrus’ second extended play The Time of Our Lives, it served as promotion for her Wal-Mart clothes line with Max Azria.

The music video for “Party in the U.S.A.,” directed by Chris Applebaum, premiered in ABC’s music lounge on September 23, 2009.
Jocelyn Vena of MTV, described the video as “reminiscent of Cyrus’ performance of the track on the Teen Choice Awards over the summer – minus the pole dancing.”

“Sweet Dreams” is a song by R&B singer Beyoncé Knowles from her third studio album, I Am… Sasha Fierce.

The Times was impressed with the song: “Sweet Dreams, with its deep bass, and disturbed lyrics, is thrilling.”
Listen the song here: Beyonce – Sweet Dreams Lyrics and Video.
The video is expected to “take Sasha to the next level” and be a more “graphic” video than the others, as stated by Beyoncé in the B-roll footage of Above and Beyoncé: Dance Mixes. It premiered on July 9, 2009, on MTV,VH1 and MSN.